the ranking is based on academic, environment, the quality of life and professional opportunities. in the mid size city categories san jose ranked first. boulder, colorado, was the top small college city. an 18-year-old man rushed to the hospital after an attack at the college of marin's kentfield campus. this happened tuesday morning outside the school's science center. arriving police saw a handful of people running from the scene. they arrested five people though one of them was later released. police aren't sure what sparked the attack. four remaining suspects all between the ages of 18 and 24 are being held now on $50,000 bail. well, perhaps the most troubling aspect of violence in the bay area is the age of those involved. there's an increase in the number of teenagers getting shot or doing the shooting. with more than 400 shootings in oakland so far this year, 115 of the victims were minors.